Airtac MI16-20 Stainless Steel Mini Cylinder MI20X275SU
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X275SU is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 275mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
- BoreØ20 mm
- Stroke275 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X275SU
Delivering 157 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles mid-range automation tasks with ease. The stainless-steel barrel and piston rod provide reliable mild corrosion resistance, making it superior to painted alternatives in damp or washdown environments. Its riveted construction keeps the body compact, while fixed TPU bumper pads absorb impact energy at the stroke extremes.
Featuring a 275 mm stroke and a 1/8 inch air port, the unit integrates seamlessly using standard ISO 6432 mounting dimensions for easy bracket fitting. The built-in magnet (-S) supports CMSG, DMSG, and EMSG position switches. For practical sizing, plan for a safe working load of about 94 N, which means it can vertically lift roughly 8 kg with a 2:1 safety margin. The U back cover provides a 90-degree mounting orientation for versatile installation.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X275SU Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X275SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 275 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed TPU bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MI16-20 Stainless Steel Mini Cylinder MI20X275SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×275 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MI-family variants: MI / MIC (double acting ±cushion), MSI / MTI (single acting push / pull), MID / MICD (double rod ±cushion), MIJ / MICJ (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X275SU Is Used
Package Diverting Gate
Actuates a routing flap on a packaging conveyor, using the 275 mm stroke to shift parcels cleanly between sorting lanes.
Vertical Tray Lifter
Raises lightweight component trays in an assembly cell, safely lifting loads up to 8 kg thanks to its 157 N push capacity at 0.5 MPa.
Lab Sample Ejection
Pushes prepared specimens out of a testing fixture, where the stainless steel build withstands occasional chemical splashes during processing.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X275SU the Right Cylinder?
When sizing this 20 mm bore actuator, consider the neighbouring options: the smaller MI16 generates 100.5 N of push at 0.5 MPa, while the larger MI25 provides 245.3 N. This model fits perfectly when the 16 mm falls short but the 25 mm is physically excessive. Because the 275 mm stroke is relatively long, ensure your mounting setup prevents rod side-loading and bending forces to avoid premature seal wear.
The U-shaped 90-degree rear cover allows specific pivot mounting configurations. Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centred; the TPU bumpers only decelerate the stroke end and do not function as a brake. To suspend a load safely during a pressure drop, install an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Use correct back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X275SU FAQ
This 20 mm bore cylinder features a 1/8 inch air port and a male M8x1.25 rod thread. It generates 157 N push and 131.9 N pull at 0.5 MPa, increasing to 219.8 N push and 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa.
Yes, the -S suffix indicates a built-in piston magnet, allowing you to mount CMSG, DMSG, or EMSG reed and electronic switches directly to the body. The U back cover provides a 90-degree mounting interface, and the body conforms to ISO 6432 standard mini-cylinder mounting dimensions for easy bracket integration.
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